Drying-machine.



W. R FILES.

DRYING MACHINE. I

APPLICATIQN FILED OCT. 4, I915 Pate-Iited Mar. 14, 1916.

2 SHEETS SHEET I.

( nventor W)" liam F )35 Witnesses W. R. FILES.

DRYlNG MACHINE.

APPLICATION man ocr. 4. 1915.

Patented Mar. H, 1916.

-2 SHEETS SHEEPZ.

awuawtoac William Q- Files WILLIAM R. FILES, 0F PROVIDENCE,

ODE ISLAN.

DRYING-MACHINE.

ie/arse.

Specification of Letters Patent.

Patented Mar. 1141, rate.

Application filed October a, 1915. Serial Ito. 53,900.

To all whom it may concern:

Be it known that 1, WILLIAM R. FILES, a citizen of the United States, and resident of the city of Providence, in the county of Providence and State of Rhodelsland, have invented certain new and useful Improvements in Drying-Machines, of which the fol lowing is a specification.

This invention relates to drying machines of the class having a lurality of steam heated cylinders arranged to dry long strips of cloth, paper, yarn or other material, upon being run therethrough and the same is an improvement on my prior Patent No. 1109977.

The object of my present invention is to provide an improved construction whereby the low pressure or exhaust steam may be used with greater efliciency and economy for drying goods, the same comprising a plurality of rotatable drying cans into whlch steam is admitted, the exhaust from said cans being passed through a water seal, where the air and steam vapor are separated from the liquid to pass into a relief main, and the liquid portion is discharged into a main exhaust, also to provide one or more modifying cylinders, into which the contents of the relief main, also a second vapor portion, subsequently separated from the contents of the exhaust main, are caused to discharge, for the purpose of heating this cylinder with that which would otherwise be wasted.

The invention further consists in the provision of an equalizing pipe connecting the exhaust and relief mains, or.equalizing the pressures in both, to prevent the seals at the ends of the cylinders from blowing out or becoming emptied.

The invention further consists in the provision of a separator in the exhaust main line, and the connecting of a vaporizing chamber to said separator for the purpose of permitting the vapor to again separate from the liquid which second separation is due to the escape of the latent heat, as the pres sure in this main is now reduced after passing through the trap to that of the atmosphere and this vapor thus permitted to separate, is raised by a jet fromthe relief main passing through the injector, whereby the heated vapor from both is forced into the modulating can heatingthe same by that which would otherwise be wasted.

A further object of the invention is to provide a water seal between the vaporizer and the discharge outlet, for the purpose of holding back or preventing the heat or the heated vapors in the vaporizer from escapmg too readily therefrom, whereby it is made possible to utilize the vapor in the vaporizer to assist in heating the modifying can.

With these andother objects in view, the

scribed, and particularly pointed out in the appended claims. y

In the accompanyi ng drawings; Figure 1- 1s a side elevation-showing a portion of my lmproved drying machine and illustratmg the exhaust side of the piping system. Flg. 2 is a sectional'view through the ends of one of the drying cylinders and its bear mgs, also showing one of the seals in section Fig. 3-, is a diagrammatic view i1l ustratmg the operation of the fluid in the system. 4 is an enlarged side elevation tllustrating the injector feature of the sysem.

Referringto the drawings, 10 and 11 designate two horizontal rails, forming theframework of the machine. They are preferably made hollow and some enay serve as conduits to receive either the supply. or the exhaust steam when desired. Thesebeamsmay bespa'ced apart and supportedby the upri hts 12. -Mounted on these framesin suite le bearings are twe rows of "cvlinders 13 and 14:, each cylinder being provided with suitable intermeshing gears 15 and 16 through which they are driven in unison from the main shaft .17 and ,inion in. These 0 linders are hollow an are each rovided Y with a hollow trunnion 19, see ig. 2, through which the steam enters from the main 20 through pipe 21.,hollow-frame 10, and channel 11, and after heating the cylinder a portion of the steam is condensed, and the water of condensation risesthrough the downwardly turned pipe 23 and passes through trunnion 22 and'channel" 24, into the water seal 25. Here it enters the chamber invention consists of certain novel features of construction, as will be more fully de- 26 where it isforced against the baflie plate 27 and here caused to separate, the comparatively dry steam, air and vapor pass1ng upward through pipe 28 into the relief mam 29, while the water of condensation passes downward through the drop leg 30 to enter the exhaust main "31. In order to'equalize the pressures in the relief main 29 and the exhaust main 31, I have connected them together by an equalizing pipe 32, whereby the pressures in both are equalized to prevent thewater being blown or emptied from the seals regardless of different pressures which may be carried by the system.

A feature of my present invention is my improved means for further utilizing the latent heat in the discharge from the main cylinders for heating the modulating cylso control the flow through the discharge pi'pe'39. By this construction and arrangement itwill be seen that owing to the fact that the 'pressure'has beenconsiderably reduced by passing through the trap or separator, the latent heat is at once liberated, permitting the vapor to rise therefrom,

and separate from the liquid. Leading.

from this vaporizer is a riserpipe 40, communicating with the trunnion 41 of the modulating cylinder 42 and in order tocreate a draft to lift this separated vapor from the vaporizer and discharge the same into the modulating can, I have rovided an injector 43 which is connecte to the drop 1eg'29 of the relief main 29, the pressure from which is caused to pass through the nozzle 43.0f the injector and create a vacuum in the portion 44 of the trunnion, and so lift this vapor from the vaporizer and discharge the ame into themodulating can. As fast as the steam condenses to a certain predetermined height in this modulating can it is lifted'to the trunnion 45 by the usual discharge pipe at the opposite end, and discharged through the drip pipe 46 into the funnel 47 whence it. runs down and passes out through the main discharge 39.

By my improved construction it will be seen that the modulating cylinders are heated entirely by steam which has once been used in the other cylinders and which by my improved system is utilized to the greatest a vantage in producin just the exactamount of heat desired in thls so called modulating cylinder and this heat 'may" be'nicely controlled by closing or opening the valve 48. By thus being able to regulate the heat in the entering end of the machine, the disagreeable feature commonly known as blistering, on dye goods or the like, is effectually prevented.

I claim:

1. A drying machine comprising a plu' rality of rotatable drying "cans, a steam said exhaust, and relief mains, a modulating can, and means whereby the contents of said relief main and a portion of the contents of said exhaust'main are caused to discharge into said modulating can.

'2. A drying machine comprising a plurality of rotatable drying cans, a steam inlet to said cans, an exhaust main receiving the liquid discharge from said cans, a relief main receiving the air and vapor discharge from said cans, a modulating can, and an ejector through which the contents of the relief main passes to drive the vapor from said exhaust main into said can.

3. A drying machine comprising a plurality of rotatable drying cans, a steam inlet to said cans, a relief main receiving the air and vapor discharge from said cans, an exhaust main receiving the liquid discharge from said cans, a separator in said exhaust main line, a vaporizer, connected to said separator and means where'- by the contents of said relief main and a portion of the contents of said vaporizer is caused to enter and heat said modifying can.

4. A drying machine comprising a plurality of rotatable drying cans, a steam inlet to said cans, a relief main receiving the air and vapor discharge from said cans, an exhaust main receiving the liquid discharge from said cans, a separator in said exhaust main line, a vaporizer connected to said separator and an injector through which the contents of the relief main passes to force the vapor from said vaporizer into said can.

5. A drying machine comprising a plurality of rotatable drying cans, a steam inlet to said cans, a relief main receiving the air and vapor discharge from said cans, an exhaust main receiving the liquid discharge from said cans, a separator in said exhaust main line, a vaporizer connected to said separator, a water seal in the discharge from said vaporizer, an injector through which the contents of said relief mainpasses, a riser pipe from said vaporizer to said injector through which the va or is drawn therefrom and discharge into said modulating can.

6. A drying machine/comprising a plurality of rotatable drying cans, a steam inlet tosaid cans, anv exhaust main'receiving the liquid discharge from said c ans, a relief main receiving the air and vapor discharge from said cans, a pressure equal- 1z1ng pipe between said exhaust and relief mams, a modulating can, and an injector through which the contents of the relief main pesses to drive the vapor from said 10 exhaust main into said modulating can.

In testimony whereof I aflix my signature in presence of two witnesses.

WILLIAM R. FILES.

Witnesses HOWARD E. BARLOWQ 

